Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"duong van ho snippets" » "duong van code snippets", "duong va ho snippets", "luong va ho snippets", "dang van ho snippets", "duong van hoa snippets", "duong van hoc snippets", "duong van hoe snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("duong van ho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong van ho snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( duong van ho snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong van ho snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.